v 1.7 dev release

Application:
V Implement "Save" menu
V Implement new saved font file format

Functionality:
V "Only numbers" range in the New dialog
V "Specify range" in the New dialog
V "Single frame", "only numbers" and "specify range" as radio buttons
V Button to Clear/Fill a block
V Copy-paste to a symbol with different size
V Change height of variable width fonts with ability to choose which side to add pixels to
V Make it possible to have zero width chars in VarWidth fonts
V Tooltips on main form

Bugs:
V Every char changes its width to default on VarWidth font height change!
V App allows to create fonts with a gap in symbol cequence!
V File -> New does not check for unsaveed changes!

McBitFont/App.config

@@ -1,6 +1,14 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
     </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
 </configuration>